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Modbus Plus NOM
304
35013379 02 October 2007
Tree
Configuration
The use of a tree configuration can provide flexibility in the layout of Modbus Plus
and NOM 25200 networks. The following illustration shows an example of a tree
configuration. Additional repeaters can be connected in order to extend
communication between electrical links.
490NRP254 Fiber Optic Repeaters
Node # 9
P/S
CPU
I/O
NOM
252
MB+ Cable
Legend
Fiber Optic
Cable
MB+ Tap with
Terminator
MB+ Tap
Node # 8
P/S CPU I/O
NOM
252
Node # 5
P/S CPU I/O
NOM
252
Node # 4
P/S CPU I/O
NOM
252
Node # 2
P/S CPU I/ONOM
252
Node # 3
P/S
CPU
I/O
NOM
252
Node # 6
P/S
CPU
I/O
NOM
252
Node # 7
P/S
CPU
I/O
NOM
252
Node # 1
P/S CPU I/O
NOM
211
Tree Configuration Example
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com
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